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http://dx.doi.org/10.14347/kadt.2011.33.4.283

The Study of Flexural Strength of Full Zirconia Crown using Block after Clinical Work  

Jung, Hyo-Kyung (Dept. of Dental Technology, Daegu Health College)
Kwak, Dong-Ju (Dept. of Dental Technology, Daegu Health College)
Publication Information
Journal of Technologic Dentistry / v.33, no.4, 2011 , pp. 283-289 More about this Journal
Abstract
Purpose: The purpose of this study was to evaluate flexural strength of full zirconia crown using block after clinical work. Methods: The three point bending test was used to measure the flexural strength of zirconia block. Statistical analysis was done using the Statistical Package for Social Sciences version 19.0 for Windows. As for the analysis methods, the study used analysis of variance, Tukey's test. Results: The ave Rage value of flexural strengths of WIELAND, Zirkonzahn, Hass, D-MAX were 516.2 MPa, 612.6MPa, 566.2MPa, 744.6MPa. The ave Rage value of Surface Roughness of WIELAND, Zirkonzahn, Hass, D-MAX were 0.39Ra, 0.33Ra, 0.33Ra, 0.47Ra. Conclusion: Flexural strength of zirconia block decreased after clinical work. Flexural strength of zirconia block is equal to or higher than flexural strength of dental metal, so zirconia block can be used as dental material.
Keywords
zirconia block; flexural strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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